When you're in Barcelona, it's easy to get lost in the hustle and bustle of the city: Gaudí's wonders, tapas bars, sunsets on the beach – but if you have a day to dedicate to nature and something completely different, Montserrat is a place you shouldn't miss. It really is like stepping into a completely different world, and you don't even have to go far. The train leaves from Plaça d'Espanya and in less than an hour you'll be at the foot of the iconic, saw-toothed mountain.